#include<iostream>
#include<sys/types.h>
#include<sys/socket.h>
#include<unistd.h>
#include<cstring>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<cstdio>
#include<pthread.h>
#include"Terminal.hpp"
void Usage(std::string proc)
{
    std::cout << "\n\rUsage: " << proc <<"serverip serverprot\n" << std::endl;
}
struct ThreadData
{
    struct sockaddr_in server;
    int sockfd;
    std::string serverip;
};
void* recv_message(void* args)
{
    OpenTerminal();
    ThreadData* td = static_cast<ThreadData*>(args);
    char buffer[1024];
    while(true)
    {
        memset(buffer, 0, sizeof(buffer));
        struct sockaddr_in socktmp;
        socklen_t tmplen = sizeof(socktmp);
        ssize_t s = recvfrom(td->sockfd, buffer, 1023, 0, (sockaddr*)&(td->server), &tmplen);
        if(s > 0)
        {
            buffer[s] = 0;
            std::cerr << buffer << std::endl;
        }
    }
}
void* send_message(void* args)
{
    ThreadData* td = static_cast<ThreadData*>(args);
    std::string message;
    socklen_t len = sizeof(td->server);
    std::string welcome = td->serverip;
    welcome += " comming...";
    sendto(td->sockfd, welcome.c_str(), welcome.size(), 0, (const sockaddr*)&(td->server), len);
    
    while(true)
    {
        std::cout << "Please Enter@ ";
        std::getline(std::cin, message);
        sendto(td->sockfd, message.c_str(), message.size(), 0, (const sockaddr*)&(td->server), len);
    }
}
int main(int argc, char* argv[])
{
    if(argc != 3)
    {
        Usage(argv[0]);
        exit(0);
    }

    std::string serverip = argv[1];
    uint16_t serverprot = std::stoi(argv[2]);
    
    ThreadData td;
    td.serverip = serverip;
    bzero(&td.server,sizeof(td.server));
    td.server.sin_family = AF_INET;
    td.server.sin_port = htons(serverprot);
    td.server.sin_addr.s_addr = inet_addr(serverip.c_str());
    td.sockfd = socket(AF_INET, SOCK_DGRAM, 0);
    if(td.sockfd < 0)
    {
        std::cout << "socker error" << std::endl;
        return 1;
    }

    pthread_t recvr, sender;
    pthread_create(&recvr, nullptr, recv_message, &td);
    pthread_create(&sender, nullptr, send_message, &td);
    
    pthread_join(recvr,nullptr);
    pthread_join(sender,nullptr);

    close(td.sockfd);
    return 0;
}